Tawana Resources and joint venture partner Alliance Mineral Assets have completed the first of three performance tests at the Bald Hill lithium plant in the Eastern Goldfields region of Western Australia, returning high-quality concentrate results in excess of 6 per cent lithium oxide.
The test involved the processing of 4152t of ore over a 24-hour period at an average rate of 173t per hour.
Results returned include grades of 7.03 per cent lithium oxide from initial sampling, as well as 0.34 per cent iron oxide and 1.12 per cent combined sodium oxide and potassium oxide. Additionally, initial sampling of waste material returned grades of 0.1 per cent lithium oxide.
According to Tawana Resources managing director Mark Calderwood, the production of concentrates in excess of 6 per cent lithium oxide within the first two weeks of ore commissioning exceeded expectations.
“It is particularly pleasing to see predicted plant performance being achieved in practice,” he said.
“The high quality of concentrates appears to be testament to the favourable mineralogy-metallurgy of the Bald Hill deposit and the bespoke design of the DMS circuit.”
Tawana recently announced it was spinning three of its other assets — the Cowan lithium project, Yallari lithium project and Mofe Creek iron ore project — into a new company called SpinCo, in order to increase its focus on the Bald Hill project with Alliance.